Means for producing vibrations.



PATENTED FEB. 28, 1905.

B. WOLVERTON.

MEANS FOR PRODUCING VIBRATIONS.

APPLIOATION FILED MAY 11, 1904.

No. mares.

Patented February 28, 1905.

ATENT OFFICE.

MEANS IF'UH PRQDUUING VlBFRA l'IlONSn SPECIFICATION forming part of Letters Patent No. 783,768, dated February 28, 1905.

Application filed May 11, 1904 serial No. 207,378.

1'0 (Ll/L Hill/07721 um/y concern:

Be it known that I, BrnoN \Votvmrron, a citizen of the United States, and a residentof New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Means for Producing Vibrations, of which the following is a specification.

The subject of this invention is a novel mechanical means for converting a reciprocating motion into a series of vibrations, and is susceptiblc of various applications, including service as a thera 'ieiiitical appliance.

Provision is made whereby the vibrations acquired by the reciprocated element comprising a spring are rendered uniform in order to correspond in rhytlun with those set up in the rod, with the result that the movement of said element is rendered correspondingly uniform and the efficiency of the apparatus promoted.

There are other important features connected with the invention, which, besides those al-' luded to, are clearly set forth in the subsequent detailed description.

In the accompanying drawings, forming part of this specification, Figure 1 is an elevational view of an apparatus embodying one form of my invention. Fig. 2 is an enlarged vertical sectional detail view showing a portion of the straight rod and the vibration-inducing arm. Figs. 3, 4, and 5 are modifications of the arm-carrying sleeve. Fig.6 is

an enlarged view of a convolute spring used,

as the base to the supporting-rod.

Similar letters are employed to designate corresponding parts in the several views wherein they occur.

A indicates a cylindrical straight metal rod seated in a bell-shaped base B, of wood or other material, and provided with a wooden cap C. Slidingly seated on this rod is a metallic arm-holding sleeve 1), which may be case-hardened, having its bore enlarged at the center, so that its only contact with the rod is at its upper and lower inner edges, whereby a vibratory motion can be readily imparted thereto. This is clearly shown at (I, Fig. 2. This sleeve is also provided with a suitable screw-thrczuled opening on the periphery at or somewhat to either side of the horizontal center, as shown at I), Fig. 2. This opening is formed to receive a rod E, which is screwthrcaded to engage with the screw-threaded opening in the sleeve. A coiled spiral spring 1* surrounds this rod and is fastened by pins 0 c to the tenou ends of knobs Ur, made of any suitable material, said tenons being-covered by ferrules H.

l have before stated that the carrying-slmive may be case-hardened; but I may prefer to prevent wear by applying detachable and removable case-hardened rings or washers, secured in any suitable manner to the sleeve, as shown in the modifications. Figs. 3 and i show said rings or washers fastened by screws and Fig. 5 by brazing or sweating. The base B of the supporting-rod, as shown in Fig. 6, consists of an in verted-cone-shaped couvolute spring, which encircles said rod and is fastened in any suitable manner.

By the construction disclosed inthe several ligures and hereinbefore described it will readily be seen that a distinct vibratory motion is given to the arm by the action of the sliding sleeve upon the rod.

Having now described my invention, what I claim as new, and desire to secure by Letters Patent, is

in means for converting reciprocatory into vibrative movements, the combination with a straight rod, of a sleeve for vibrative move ment thereon, and maintained in balanced relation carrying an inner and outer body closely connected to and carried by said sleeve and said bodies connected by a spiral spring.

Signed at New York, in the county of New York and State of New York, this 18th day of April, A. I). 1904.

BYRON l/VOLVERTION.

Witnesses:

CHARLES T. HESSER, l nnnnmorc A. Courts. 

